Chaske Spencer wore a complete look from John Varvatos.  He did not work with a stylist for this event.

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Andy Samberg wore Burberry.

Bryan Cranston wore Burberry.

Chris O'Donnell wore a tux from Giorgio Armani and the shoes were from Cole Haan.  His cufflinks were from Martin Katz.  He was styled Wendi & Nicole.

Desmond Harrington wore Calvin Klein Collection.

Gabriel Byrne wore Calvin Klein Collection.

Hugh Laurie wore Burberry.

Hunter Parrish wore a one-button Dior suit and Marc Jacobs shoes.  He is styled by Chris Horan.

Jack McBrayer wore Calvin Klein Collection.

Jamie Kennedy wore a tux from Reiss and was styled by Dorothy Amos.

Jason Siegel wore John Varvatos.

Jeremy Piven wore Dolce & Gabbana, with shoes from Tom Ford.

Jerry Ferrara wore Hugo Boss.

John Slattery wore Calvin Klein Collection.

Jim Parsons wore Calvin Klein Collection.

Jimmy Fallon wore Tom Ford.

Jon Cryer wore Moschino Uomo.

Justin Timberlake wore William Rast with Dior shoes.  He was styled by Annie Psaltiras.

Kevin Bacon wore John Varvatos.

Kevin Connolly wore D&G.

Kevin Dillon wore Hugo Boss.

Kyle MacLachlan wore Hugo Boss.

Michael J. Fox wore Calvin Klein Collection.

Michael C. Hall wore Calvin Klein Collection.

Neil Patrick Harris wore Dolce & Gabbana.

Omar Epps wore Burberry.

Rainn Wilson wore Burberry.

Rex Lee wore a Brooks Brothers tux and platinum, diamond and sapphire cufflinks and shirt studs from Jacob & Co.

Ryan Seacrest wore Burberry.

Stephen Colbert wore Brooks Brothers.

Stephen Moyer wore Dolce & Gabbana.

Todd Holland wore Hugo Boss.

Tony Shaloub wore Hugo Boss.

Jessica Stroup wore a Jenni Kayne dress, belt and shoes with a Sergio Rossi clutch.  Her gold & diamond cocktail ring was from Siera.  She was styled by Lia Davis for this event.

Ashlee Simpson-Wentz wore an Elise Overland dress styled by Annie Jagger.

Jessica Lucas wore a dress by Ina Soltani, a platinum ring and earrings from Neil Lane, a Swarovski bag and Aldo's "Hondel" style shoes.   She was styled by Rhonda Spies.

Jenna Dewan stepped out in a Herve Leger dress with Jimmy Choo's "Prosper" style shoes and a Lambertson Truex clutch.  She worked with stylist Jessica Paster for this event.

Laura Leighton wore a dress from Elizabeth Mason Couture with a pair of Louboutins.  Her jewelry was Excalibur by Kurt Rothner.  She did not work with a stylist for this event.

Josie Bissett wore a dress from Alice + Olivia with jewelry from Sara Weinstock.  She did not work with a stylist.

Michael Rady wore a gray two button slim peak lape suit, black shirt and black Murray oxfords from John Varvatos.

The Jonas Brothers had two looks during the show.  For arrivals, Kevin wore a two piece suit and shirt look from Dior Homme.  Joe wore Burberry with Vans, and a necklace from Jelena Behrend.  Nick wore a Moschino suit jacket with Jonas Brothers jeans and Gucci loafers.

For the performance Kevin wore a D&G jacket.  Joe wore a customized t-shirt & belt from Traffic in Los Angeles with Marc Jacobs shoes.  Nick wore a Burberry leather jacket with medals from Jelena Behrend and boots from John Varvatos.

They were styled by Michelle Tomaszewski.

Carla Gugino wore a dress from Twenty Cluny with Jimmy Choos.  Her jewelry was Neil Lane diamond chandelier earrings, and diamond and platinum bangles and ring.  She was styled by Jessica Paster.

Hayden Panettiere wore a dress from Christian Cota with a clutch and shoes from Christian Louboutin.  Her jewelry was from Van Cleef & Arpels.  She was styled by Logan Horne.

Perrey Reeves wore a bright orange Reem Acra dress from the S/S 09 collection.  She paired it with Jimmy Choo "Elazer" platform sandals.  She did not work with a stylist for this event.

Jamie-Lynn Sigler wore a dress from DKNY's Fall 09 collection.

Adrian Grenier wore a head-to-toe ensemble from Ferragamo.

Jeremy Piven was outfitted in jeans, blazer, shirt, tie and wingtip boots by John Varvatos.

Kevin Connolly wore a suit, shirt and tie from D&G.

Cameron Diaz looking cute in a Michael Kors top & belt.  Jeans are 7 for All Mankind.  DSquared2 shoes, LAI bag and ring from Alexis Bittar.  She wore a bracelet from Gemma Redux. Cameron was styled by Rachel Zoe.

Miley Cyrus is wearing a dress from Sheri Bodell.  Jewelry is from Coomi and shoes are Joie.  Miley was styled by Tara Swennen.

Amber Valetta was wearing a dress from Preen with a Chanel clutch ...  styled by Lia Davis.

Demi Lovato is wearing a dress from Ina Soltani with YSL heels.  Bracelets are Swarovski and diamond ring and hoop earrings are Rosalina Jewelry.  Demi was styled by Michelle Tomaszewski.

Emma Roberts wore a D&G orange strapless dress with black lace overlay.  Shoes were Jimmy Choo booties and her ring & cuff were from CC Skye.  Emma was styled by MAUDE (Emily Current & Merritt Elliott).

America Ferrara wore a J. Mendel dress with Jimmy Choos.  Bracelets were H. Stern's Neptune Bracelet and Stars Deco Bracelet in 18K gold with diamonds.  Her ring was one-of-a-kind from the Stern Star Collection in 18K gold with white & black diamonds.  She was styled by Annabel Tollman.  Her makeup look was created by artist Vanessa Scali.

Keke Palmer wore an Elise Overland stretch-leather sheen minidress to the awards.  Bracelets were platinum and diamond from Neil Lane.  Earrings were 18 carat oxidized gold and diamond Strburst from Platt Boutique.

Ashley Tisdale wore a dress from Akiko Ogawa.  Ashley was styled by Simone Harouche.

Megan Fox wore J Brand jeans with a Thomas Wylde shirt & scarf.  The jacket was PRPS.  Megan wore Loree Rodkin's gothinc point ring with 15 carats of multi-colored diamonds and center moonstone.  Megan was styled by Deb Waknin.

Presenter Lily Collins wore a S/S 09 one-shouldered blue cocktail dress, nude leather heels and a gold paillette clutch - all from Versace.

Some of the boys!

The Jonas Brothers ...

Nick is wearing a Givenchy jacket, Paul Smith shirt, Lova jeans, Esquvel shoes and a Nagual wallet chain.

Kevin is wearing a YSL scarf, Phillip Lim shirt, Martin Margiela pants and Jack Purcell Converse shoes.

Joe is wearing an LNA t-shirt, Ever leather jacket, April 77 jeans and YSL sneakers.

They were styled by Michelle Tomaszewski.

Chris Pine wore a gray pinstriped peak lapel button-down vest from John Varvatos.